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CCS/UCD3138PFCEVM-026: About the single-phase Boost PFC official routine PWR026_PFC
Tool/software: Code Composer Studio
Could you please explain how to accomplish Code if Vin is dropped to15-20v，Vout dropped to 25-30v，I use PWR026_PFC.
Change PFC setpoint from 390 to 30 (line 195 in your attached picture)
Change VAC_MIN_ON from 85 to 0
Change VAC_MIN_OFF from 80 to 0
Note TI EVM PWR026 does not support such low input voltage.